In part II of this SDN blog series, Innovations that can Move SDN from Depths of Disillusionment to Peak of Enlightenment, I discussed some of the technologies that can significantly improve total infrastructure efficiency, operational simplicity and deployment flexibility. In this blog, I will show you the best practice for putting everything together and building the most efficient SDN in production, whether it is Openflow or Overlay-based.
As a refresher, the following picture summarizes the SDN deployment models and the Mellanox solutions that apply to each of them:
Recommended deployment for OpenFlow based SDN networks:
Leaf-Spine architecture built using Spectrum switches with OpenFlow 1.3 support
For physical + virtual fabric, leverage ASAP2 to offload virtual switch data plane to Mellanox ConnectX-4 NICs
Advanced flow monitoring with SFLOW capabilities on Spectrum
High performance, line rate performance at any speed from 10G to 100Gb/s, including on virtualized servers
Most flexible OpenFlow switch implementation
In-depth visibility into the OpenFlow fabric
Recommended Deployment for Overlay SDN Networks:
Multiple ways for virtualized server deployments:
Virtual switch as VTEP + Mellanox VXLAN stateless offload
Mellanox NIC as VTEP (Leverage ASAP2 to offload virtual switch data plane to Mellanox ConnectX-4 NICs, while keeping SDN control plane operations in virtual switch)
For VMs who needs SR-IOV, and the legacy NIC does not support ASAP2, use Mellanox Spectrum ToR as VTEP
High-performance hardware VTEP on Mellanox Spectrum ToR for bare metal server or storage provisioning
(Roadmap Feature) High-performance hardware Layer 3 VTEP on Mellanox Spectrum spine switches for VXLAN routing.
Advanced underlay fabric monitoring with SFLOW capabilities on Spectrum
High performance, line rate performance at any speed from 10G to 100Gb/s, including on virtualized servers;
Most advanced and future-proof VTEP implementation with flexibility to do VTEP either at NIC or switch level, with potential to extend to Layer 3 hardware VTEP without forklift upgrade;
In-depth visibility into the SDN underlay fabric to facilitate correlation of stats from both layers and achieve easy troubleshooting.
SDN is an evolving technology, and Mellanox is uniquely positioned to provide the most comprehensive, flexible and efficient SDN support through our end-to-end interconnect and associated software to help our customers with any SDN deployment.
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Deliver Predictable Networks
by The Tolly Group
Understand the fundamental differences between Mellanox Spectrum and Broadcom Tomahawk based switches and the importance of predictable performance and zero packet loss.